Log Message:
- updated to 3.37

Changelog:
version 3.37
date: 2010-10-08
# minor maintenance release
fixed: more tests fixed for HTML::TreeBuilder, hopefully
       will pass now

version 3.36
date: 2010-10-07
# minor maintenance release
added: the use_tidy option to XML::Twig->new, which uses
       HTML::Tidy to convert HTML to well-formed XHTML, as an
       alternative to the default conversion which uses
       HTML::TreeBuilder
added: XML::Twig::Elt method siblings which returns the
       siblings of the element
added: methods att_accessors, elt_accessors and field_accessor
       as well as the similarly named options when creating an
       XML::Twig
added: set_outer_xml XML::Twig::Elt method
added: print_to_file on an XML::Twig::Elt
added: can use the tag[nested] form in twig handlers that
       triggers on elements 'tag' that include a child 'nested'
added: aliased the add_to_class XML::Twig::Elt method to add_class,
       which seems more natural
added: the remove_class method
added: made att and class lvalues (in perl 5.6 and up)
fixed: copy did not copy the empty status of an element
       RT#31664 spotted by Roland Minner
       https://rt.cpan.org/Ticket/Display.html?id=31664
fixed: cut_children would always set the empty status of an element,
       even if it had children left
fixed: tests did not pass with HTML::TreeBuilder 3.23_1 due to a
       change in an error message